Can COViD steal Bob’s idea? [960]
Category: Cryptography Challenge Description Bob wants Alice to help him design the stream cipher’s keystream generator base on his rough idea. Can COVi...
Recent posts
COVID’s Communication Technology! [984]
Category: Internet of Things (IoT) Challenge Description We heard a rumor that COVID was leveraging that smart city’s ‘light’ technology for communicatio...
An invitation [981]
Category: Web Challenge Description We want you to be a member of the Cyber Defense Group! Your invitation has been encoded to avoid being detected by C...
A to Z of COViD! [1986]
Category: Mobile Challenge Description Over here, members learn all about COViD, and COViD wants to enlighten everyone about the organisation. Go on, rea...
Substitution Cipher Decryption with Genetic Algorithms
This project uses Genetic Algorithms to decrypt substitution ciphers by frequency analysis.